DE102011087894A1 - Method and vehicle assistance system for active warning and / or navigation aid for avoiding a collision of a vehicle body part and / or a vehicle wheel with an object - Google Patents
Method and vehicle assistance system for active warning and / or navigation aid for avoiding a collision of a vehicle body part and / or a vehicle wheel with an object Download PDFInfo
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- 238000011156 evaluation Methods 0.000 claims abstract description 26
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- 238000001514 detection method Methods 0.000 claims description 8
- 238000001454 recorded image Methods 0.000 claims description 5
- 230000002596 correlated effect Effects 0.000 claims description 3
- 238000003909 pattern recognition Methods 0.000 claims description 3
- 238000013213 extrapolation Methods 0.000 description 3
- 230000005923 long-lasting effect Effects 0.000 description 2
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Classifications
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/16—Anti-collision systems
- G08G1/165—Anti-collision systems for passive traffic, e.g. including static obstacles, trees
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units, or advanced driver assistance systems for ensuring comfort, stability and safety or drive control systems for propelling or retarding the vehicle
- B60W30/08—Active safety systems predicting or avoiding probable or impending collision or attempting to minimise its consequences
- B60W30/09—Taking automatic action to avoid collision, e.g. braking and steering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units, or advanced driver assistance systems for ensuring comfort, stability and safety or drive control systems for propelling or retarding the vehicle
- B60W30/18—Propelling the vehicle
- B60W30/18009—Propelling the vehicle related to particular drive situations
- B60W30/18145—Cornering
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W50/08—Interaction between the driver and the control system
- B60W50/14—Means for informing the driver, warning the driver or prompting a driver intervention
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V20/00—Scenes; Scene-specific elements
- G06V20/50—Context or environment of the image
- G06V20/56—Context or environment of the image exterior to a vehicle by using sensors mounted on the vehicle
- G06V20/58—Recognition of moving objects or obstacles, e.g. vehicles or pedestrians; Recognition of traffic objects, e.g. traffic signs, traffic lights or roads
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q9/00—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling
- B60Q9/002—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling for parking purposes, e.g. for warning the driver that his vehicle has contacted or is about to contact an obstacle
- B60Q9/004—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling for parking purposes, e.g. for warning the driver that his vehicle has contacted or is about to contact an obstacle using wave sensors
- B60Q9/005—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling for parking purposes, e.g. for warning the driver that his vehicle has contacted or is about to contact an obstacle using wave sensors using a video camera
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R2300/00—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle
- B60R2300/80—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the intended use of the viewing arrangement
- B60R2300/8093—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the intended use of the viewing arrangement for obstacle warning
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W50/08—Interaction between the driver and the control system
- B60W50/14—Means for informing the driver, warning the driver or prompting a driver intervention
- B60W2050/146—Display means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2420/00—Indexing codes relating to the type of sensors based on the principle of their operation
- B60W2420/40—Photo or light sensitive means, e.g. infrared sensors
- B60W2420/403—Image sensing, e.g. optical camera
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2554/00—Input parameters relating to objects
Abstract
Die vorliegende Erfindung betrifft ein Verfahren zur aktiven Warnung und/oder zur Navigationshilfe zur Vermeidung einer Kollision eines Fahrzeugkarosserieteils und/oder eines Fahrzeugrades mit mindestens einem Bordstein und/oder einem anderem ähnlichen Objekt, wobei das mindestens eine Objekt anhand einer Auswertung der mittels mindestens einer am Fahrzeug befindlichen Kamera aufgenommenen Bilder der Fahrzeugumgebung erkannt wird und beim Vorliegen einer möglichen Kollision zwischen einem Fahrzeugkarosserieteils und/oder einem Fahrzeugrad und dem mindestens einen erkannten Objekt eine aktive Warnung ausgegeben wird und/oder aktiv in das Fahrzeugdynamik eingegriffen wird. Dabei wird das Muster der aktuell umgebenden Straße mittels einer Auswertung mindestens eines mittels mindestens einer am Fahrzeug befindlichen Kamera aufgenommenen Bildes der Fahrzeugumgebung bestimmt und mindestens ein mittels mindestens einer seitlich am Fahrzeug befindlichen Kamera aufgenommenes Bild der Fahrzeugumgebung auf Unterschiede zu der bestimmten Muster der aktuell umgebenden Straße zur Erkennung des mindestens einen Objekts ausgewertet.The present invention relates to a method for active warning and / or navigation aid for avoiding a collision of a vehicle body part and / or a vehicle wheel with at least one curb and / or another similar object, wherein the at least one object based on an evaluation by means of at least one on Vehicle detected camera images of the vehicle environment is detected and in the presence of a possible collision between a vehicle body part and / or a vehicle and the at least one detected object, an active warning is issued and / or actively intervened in the vehicle dynamics. In this case, the pattern of the currently surrounding road is determined by evaluating at least one image of the vehicle environment taken by at least one camera located on the vehicle and at least one image of the vehicle environment taken by at least one camera on the side of the vehicle for differences from the specific pattern of the currently surrounding road evaluated for detecting the at least one object.
Description
Stand der TechnikState of the art
Die vorliegende Erfindung betrifft ein Verfahren zur aktiven Warnung und/oder zur Navigationshilfe zur Vermeidung einer Kollision eines Fahrzeugkarosserieteils und/oder eines Fahrzeugrades mit mindestens einem Bordstein und/oder einem anderem ähnlichen Objekt und ein Fahrzeugassistenzsystem zur Durchführung des erfindungsgemäßen Verfahrens. Auch betrifft die Erfindung ein Fahrzeug mit einem erfindungsgemäßen Fahrzeugassistenzsystem.The present invention relates to a method for active warning and / or navigation aid for avoiding a collision of a vehicle body part and / or a vehicle wheel with at least one curb and / or another similar object and a vehicle assistance system for carrying out the method according to the invention. The invention also relates to a vehicle having a vehicle assistance system according to the invention.
Am Markt existieren eine Reihe reiner Rückfahrkamerasysteme. Diese haben die Aufgabe dem Fahrer ein reales Abbild des rückwärtigen Geschehens zu geben.There are a number of pure reversing camera systems on the market. These have the task to give the driver a real image of the rearward events.
Neben diesen Systemen drängen immer stärker Multikamerasysteme in den Markt. Diese ermöglichen die Darstellung des Fahrzeugumfeldes aus einer Vogelperspektive (Top-View).In addition to these systems, more and more multi-camera systems are entering the market. These allow the presentation of the vehicle environment from a bird's eye view (top view).
In Zukunft wird es nicht mehr ausreichen nur die unmittelbaren Fahrzeugumgebung darzustellen, sondern der Markt verlangt nach Systemen, welche den Fahrer beim Benutzen des Fahrzeuges in diversen Situationen unterstützen.In the future, it will no longer suffice to represent only the immediate vehicle environment, but the market demands systems that assist the driver in using the vehicle in various situations.
Mittels von seitlich am Fahrzeug insbesondere am Radkastenrand oder im Spiegelgehäuse montierten Kameras kann der Bereich seitlich um das Fahrzeug hinreichend erfasst werden.By means of cameras mounted on the side of the vehicle, in particular on the edge of the wheel arch or in the mirror housing, the area can be sufficiently grasped laterally around the vehicle.
In der
Mittels von seitlich am Fahrzeug
In der
Die Lage des erkannten Bordsteins kann nun mit der aktuellen Fahrzeugbewegung verglichen werden. Sollte das hintere Rad (im Fall der Vorwärtsfahrt) oder das vordere Rad (im Fall der Rückwärtsfahrt) mit einem Bordstein kollidieren, so soll der Fahrer rechtzeitig gewarnt werden.The location of the detected curb can now be compared with the current vehicle movement. Should the rear wheel (in the case of forward travel) or the front wheel (in the case of reverse travel) collide with a curb, the driver should be warned in good time.
Weiterhin denkbar ist das Ausüben eines Lenkrucks in die Fahrsollrichtung, um eine entsprechende Kollision zu vermeiden.It is also conceivable to exert a steering pressure in the desired direction of travel in order to avoid a corresponding collision.
Bei Vorliegen von scharfen beziehungsweise engen Kurven treten insbesondere Bordsteinkollisionen sehr häufig auf. In den
Aus dem Stand der Technik, insbesondere aus den Dokumenten
Offenbarung der ErfindungDisclosure of the invention
Bei dem erfindungsgemäßen Verfahren zur aktiven Warnung und/oder zur Navigationshilfe zur Vermeidung einer Kollision eines Fahrzeugkarosserieteils und/oder eines Fahrzeugrades mit mindestens einem Bordstein und/oder einem anderem ähnlichen Objekt, wird das mindestens eine Objekt anhand einer Auswertung der mittels mindestens einer am Fahrzeug befindlichen Kamera aufgenommenen Bilder der Fahrzeugumgebung erkannt. Ferner wird beim Vorliegen einer möglichen Kollision zwischen einem Fahrzeugkarosserieteil und/oder einem Fahrzeugrad und dem mindestens einen erkannten Objekt eine aktive Warnung ausgegeben und/oder aktiv in das Fahrzeugdynamik insbesondere in die Lenkung eingegriffen. Bei dem erfindungsgemäßen Verfahren wird das Muster der aktuell umgebenden Straße mittels einer Auswertung mindestens eines mittels mindestens einer am Fahrzeug befindlichen Kamera aufgenommenen Bildes der Fahrzeugumgebung bestimmt und mindestens ein mittels mindestens einer seitlich am Fahrzeug befindlichen Kamera aufgenommenen Bild der Fahrzeugumgebung auf Unterschiede zu der bestimmten Muster der aktuell umgebenden Straße zur Erkennung des mindestens einen Objekts ausgewertet.In the method according to the invention for active warning and / or navigation aid for avoiding a collision of a vehicle body part and / or a vehicle wheel with at least one curb and / or another similar object, the at least one object is based on an evaluation by means of at least one located on the vehicle Camera captured images of the vehicle environment detected. Further, in the presence of a possible collision between a vehicle body part and / or a vehicle wheel and the at least one detected Object issued an active warning and / or actively intervened in the vehicle dynamics in particular in the steering. In the method according to the invention, the pattern of the currently surrounding road is determined by evaluating at least one image of the vehicle surroundings recorded by at least one camera located on the vehicle and at least one image of the vehicle environment recorded by at least one camera located laterally on the vehicle for differences from the specific pattern of the vehicle currently evaluated surrounding road for detecting the at least one object.
Erfindungsgemäß wird weiterhin ein Fahrzeugassistenzsystem zur Durchführung des erfindungsgemäßen Verfahrens bereitgestellt, das eine Auswerteeinheit umfasst, die dazu ausgebildet ist, mindestens ein Bordstein und/oder ein anderes ähnliches Objekt anhand einer eine Mustererkennung der aktuell umgebenden Straße umfassenden Auswertung mindestens eines mittels mindestens einer, insbesondere seitlich am Fahrzeug befindlichen, Kamera aufgenommenen Bild der Fahrzeugumgebung zu bestimmen und beim Vorliegen einer möglichen Kollision zwischen einem Fahrzeugkarosserieteil und/oder einem Fahrzeugrad mit dem mindestens einen bestimmten Objekt ein Warn- und/oder Steuersignal zu erzeugen. Ferner umfasst das erfindungsgemäße Fahrzeugassistenzsystem eine Warneinheit, die dazu ausgebildet ist, beim Vorliegen eines von der Auswerteeinheit erzeugten Warnsignals eine aktive Warnung auszugeben, und/oder eine Steuereinheit, die dazu ausgebildet ist, beim Vorliegen eines von der Auswerteeinheit erzeugten Steuersignals in die Fahrzeugdynamik, insbesondere in die Lenkung, aktiv einzugreifen. According to the invention, a vehicle assistance system for carrying out the method according to the invention is furthermore provided, which comprises an evaluation unit which is designed to have at least one curb and / or another similar object based on at least one evaluation of at least one, in particular laterally, evaluation of the currently surrounding road On the vehicle, camera recorded image of the vehicle environment to determine and to generate a warning and / or control signal in the presence of a possible collision between a vehicle body part and / or a vehicle with the at least one specific object. Furthermore, the vehicle assistance system according to the invention comprises a warning unit, which is designed to output an active warning in the presence of a warning signal generated by the evaluation unit, and / or a control unit, which is adapted to the presence of a control signal generated by the evaluation unit in the vehicle dynamics, in particular into the steering, actively intervene.
Die Unteransprüche zeigen bevorzugte Weiterbildungen der Erfindung.The dependent claims show preferred developments of the invention.
Erfindungsgemäß wird eine aktive Warnung und/oder eine Navigierassistenz zum Vermeiden eines Rad bzw. Reifenkontakts mit einem Bordstein und/oder ähnlicher Objekte in einfacher Weise bereitgestellt. Bei dem erfindungsgemäßen Verfahren wird anhand einer Auswertung von Bildern der Fahrzeugumgebung das Muster der aktuellen Straße bestimmt. Anhand eines Vergleichs mit dem Muster der aktuell umgebenden Straße werden Bilder eines sich am Fahrzeug seitlich erstreckenden Bereichs der Fahrzeugumgebung auf das Vorhandensein von sich seitlich am Fahrzeug befindlichen Hindernissen, wie zum Beispiel Bordsteine und/oder ähnlichen Objekte, untersucht. So wird erfindungsgemäß ein rechenarmes und dadurch schnell durchführbares Verfahren zur Erkennung von Hindernissen, wie zum Beispiel von Bordsteinen und/oder ähnlichen Objekten, eingesetzt. Bei dem erfindungsgemäßen Verfahren entfällt der lang andauernde und rechenintensive Vergleich mit vielen vorbekannten Mustern zur Erkennung von Hindernissen. Auch entfällt bei der erfindungsgemäßen Bestimmung des Musters der aktuell umgebenden Straße die rechenintensive und langandauernde Auswertung von mehreren hintereinander aufgenommenen Bildern der Fahrzeugumgebung, die zumindest ein Stück der zu befahrenen Straße abbilden. According to the invention, an active warning and / or navigation assistance for avoiding wheel or tire contact with a curb and / or similar objects is provided in a simple manner. In the method according to the invention, the pattern of the current road is determined on the basis of an evaluation of images of the vehicle surroundings. Based on a comparison with the current surrounding road pattern, images of a vehicle-laterally-extending region of the vehicle environment are examined for the presence of side-to-side obstacles, such as curbs and / or similar objects. Thus, according to the invention, a low-index and thus quickly feasible method for detecting obstacles, such as curbs and / or similar objects used. In the method according to the invention eliminates the long-lasting and compute-intensive comparison with many previously known patterns for the detection of obstacles. Also omitted in the inventive determination of the pattern of the currently surrounding road, the computationally intensive and long-lasting evaluation of several consecutively recorded images of the vehicle environment that map at least a piece of the road to be traveled.
Ein Fahrzeugassistenzsystem zum Durchführen des erfindungsgemäßen Verfahren braucht keine relevante zusätzliche Module mit hoher Rechenleistung. Da bei einem üblichen Fahrzeugassistenzsystem mindestens eine Kamera und eine Auswerteeinheit vorhanden sind, sind auch in der Regel keine zusätzlichen Systeme zum Durchführen der erfindungsgemäße Erkennung von Hindernissen vorzusehen.A vehicle assistance system for carrying out the method according to the invention does not need any relevant additional modules with high computing power. Since in a conventional vehicle assistance system at least one camera and an evaluation unit are present, no additional systems for carrying out the detection of obstacles according to the invention are to be provided as a rule.
Vorteilhafterweise wird bei dem erfindungsgemäßen Verfahren mittels einer am Fahrzeug befindlichen Front- und/oder Heckkamera mindestens ein Bild eines Straßenstückes zur Bestimmung der Muster der aktuell umgebenden Straße aufgenommen und mit mindestens einem mittels der mindestens einen seitlichen Kamera aufgenommenen Bild der Fahrzeugumgebung zur Erkennung des mindestens einen Objekts korreliert.Advantageously, in the method according to the invention by means of a front and / or rear camera located on the vehicle at least one image of a street piece for determining the pattern of the current surrounding road and recorded with at least one captured by the at least one side camera image of the vehicle environment for detecting the at least one Object correlates.
Bei dem erfindungsgemäßen Verfahren wird untersucht, ob die Pixel nahe des Rades dem Bild der Straße oder einem Hindernis entspricht. Im Fall einer Front- und/oder Heckkamera (Rückfahrkamera) kann zunächst geprüft werden, ob sich ein Hindernis im unmittelbaren Umfeld befindet. Das kann mittels eines Parkpilots oder per Videosensorik geschehen. Wurde kein Objekt erkannt, kann der Bildbereich direkt hinter bzw. vor dem Stoßfänger in eine Speichereinheit als repräsentatives Muster für die umgebende Straße gespeichert werden. Das gespeicherte Bild des Straßenstückes kann nun mit dem Bild der seitlichen Kamera korreliert werden. Dabei ist eventuell das Durchführen eines Histogrammangleichs aufgrund unterschiedlicher Belichtungssituationen notwendig. Durch diesen Schritt ist das Muster der aktuell umgebenden Straße bekannt und der Bildbereich in der Nähe des Rades kann auf einen signifikanten Unterschied zu dem jeweiligen Straßenmuster ausgewertet werden. Unterschiede zu dem jeweiligen Straßenmuster werden genau dann festgestellt, wenn keine Straße im Bild abgebildet ist, sondern ein Bordstein oder ein anderes Hindernis.In the method according to the invention, it is examined whether the pixels near the wheel correspond to the image of the road or an obstacle. In the case of a front and / or rear camera (reversing camera) can first be checked whether an obstacle is in the immediate vicinity. This can be done by means of a parking pilots or by video sensors. If no object has been detected, the image area directly behind or in front of the bumper can be stored in a storage unit as a representative pattern for the surrounding road. The stored image of the street piece can now be correlated with the image of the lateral camera. It may be necessary to perform a histogram adjustment due to different exposure situations. Through this step, the pattern of the currently surrounding road is known and the image area near the wheel can be evaluated for a significant difference to the respective road pattern. Differences to the respective road pattern are determined if and only if no road is shown in the picture, but a curb or another obstacle.
In einer weiteren vorteilhaften Ausführungsform der Erfindung wird das Muster der aktuell umgebenden Straße in einfacher Weise mittels einer Erkennung von entsprechenden Strukturwiderholungen in mindestens einem mittels mindestens einer, insbesondere seitlich am Fahrzeug befindlichen, Kamera aufgenommenen Bild der Fahrzeugumgebung bestimmt.In a further advantageous embodiment of the invention, the pattern of the currently surrounding road is determined in a simple manner by means of a recognition of corresponding structural responses in at least one image of the vehicle environment taken by at least one camera, in particular laterally on the vehicle.
Anstelle des Mustervergleichs (Pattern-Vergleich) der Bilder der Front- und/oder Heckkamera mit den Bildern der seitlichen Kamera, lässt sich die Straße in einfacher Weise auch über eine entsprechende Strukturwiederholung erkennen. Instead of the pattern comparison (pattern comparison) of the images of the front and / or rear camera with the images of the side camera, the road can be easily recognized by a corresponding structure repetition.
Insbesondere wird bei der erfindungsgemäßen Erkennung des Musters der aktuell umgebenden Straße mindestens ein vordefinierter Bildausschnitt eines mittels der mindestens einen seitlichen Kamera aufgenommenen Bildes der Fahrzeugumgebung ausgewertet, wobei in dem vordefinierten Bildausschnitt der direkte Bereich der Fahrzeugumgebung knapp vor und/oder neben einem Fahrzeugteil, insbesondere angrenzend an einem Fahrzeugteil, insbesondere knapp vor dem Seitenschweller, abgebildet wird.In particular, in the inventive detection of the pattern of the currently surrounding road, at least one predefined image section of an image of the vehicle environment captured by the at least one lateral camera is evaluated, wherein in the predefined image section the direct area of the vehicle surroundings is just ahead and / or next to a vehicle part, in particular adjacent on a vehicle part, in particular just before the side skirts, is displayed.
Das erfindungsgemäße Verfahren zur Erkennung des Bodenmusters mittels der Verwendung des direkten Bildausschnittes knapp vor dem Seitenschweller, wobei der Seitenschweller ebenfalls von der Kamera erkannt werden und die Karosserie durch die am Fahrzeug angebrachten Spiegel gesehen werden kann, ist sehr leicht und schnell durchführbar.The inventive method for detecting the ground pattern by means of the use of the direct image section just before the side skirts, wherein the side skirts are also recognized by the camera and the body can be seen through the mirrors mounted on the vehicle, is very easy and fast to carry out.
Dadurch kann ein automatisiertes Einparksystem bereits Kenntnis über die Position des Bordsteins besitzen.This allows an automated parking system already have knowledge of the position of the curb.
Vorzugsweise wird bei der erfindungsgemäßen Bestimmung des mindestens einen Objekts zusätzlich eine Objekterkennung und/oder Objektverfolgung mittels einer Auswertung von Bildern der Fahrzeugumgebung eingesetzt, die mittels mindestens einer am Fahrzeug befindlichen Kamera aufgenommenen werden.In the case of the determination according to the invention of the at least one object, preferably object recognition and / or object tracking by means of an evaluation of images of the vehicle surroundings are used, which are recorded by means of at least one camera located on the vehicle.
Bei dem erfindungsgemäßen Verfahren kann eine Objektverfolgung (Tracking) von über eine nach vorn gerichtete Kamera erkannten Objekten durchgeführt werden. Insbesondere werden zusätzlich oder alternativ auch über eine Heckkamera erkannte Objekte verwendet, die insbesondere im Fall einer erkannten Straße oder eines sich entlang der Straße ausdehnenden Hindernisses nach vorne extrapoliert werden können. Es ist auch eine Extrapolationsunterstützung durch GPS denkbar. Die Extrapolationslänge ist in diesem Fall von der Darstellung der aktuellen Fahrzeugumgebung auf der GPS-Karte anhängig. Bei Vorliegen einer kurz bevorstehenden Einfahrt oder einer scharfen Kurve darf das rückwärtiges Bild nur sehr wenig extrapoliert werden; im Fall einer geraden Strasse ist jedoch eine weitere Extrapolation denkbar. Dadurch wird die Detektionswahrscheinlichkeit für einen Bordstein erhöht, da die Struktur der Fahrzeugumgebung genauer untersucht wird.In the method according to the invention, an object tracking (tracking) of objects detected via a front-facing camera can be performed. In particular, additionally or alternatively, objects recognized via a rear camera are also used, which can be extrapolated forward, in particular in the case of a recognized road or an obstacle extending along the road. It is also an extrapolation support by GPS conceivable. The extrapolation length in this case depends on the representation of the current vehicle environment on the GPS map. If there is an imminent entrance or a sharp turn, the rear image may be extrapolated very little; in the case of a straight road, however, further extrapolation is conceivable. This increases the detection probability for a curb as the structure of the vehicle environment is examined more closely.
Insbesondere wird erfindungsgemäß zusätzlich eine Höhe des mindestens einen Objekts mittels einer Auswertung mindestens eines Bildes der Fahrzeugumgebung bestimmt, das insbesondere mittels einer am Fahrzeug befindlichen Stereokamera und/oder Zeilenkamera aufgenommen wird. Hierdurch kann die Detektionswahrscheinlichkeit für einen Bordstein erhöht werden, da ein weiteres Merkmal zur Verfügung steht.In particular, according to the invention, a height of the at least one object is additionally determined by means of an evaluation of at least one image of the vehicle surroundings, which is recorded in particular by means of a stereo camera and / or line camera located on the vehicle. As a result, the detection probability for a curb can be increased because another feature is available.
Bei einer besonders bevorzugten Ausführungsform der Erfindung wird mindestens ein als Hindernis erkanntes Objekt, insbesondere mindestens ein als Hindernis erkannter Bordstein, einem Klassifikator als Muster zur Erkennung von ähnlichen Hindernissen zugeführt.In a particularly preferred embodiment of the invention, at least one object recognized as an obstacle, in particular at least one curb recognized as an obstacle, is fed to a classifier as a pattern for the detection of similar obstacles.
Erfindungsgemäß werden Klassifikatoren angelernt. Während eines automatisierten Einparkversuch mittels eines Parklenkassistenten (Park-Steering-Control) richtet sich das Fahrzeug automatisiert in einer Längsparklücke an einem Bordstein aus. Das System kennt also bereits die Lage und das Vorhandensein eines Bordsteins. Diese Informationen können von dem bildverarbeitenden Algorithmus direkt genutzt werden und entsprechende Objekte im Bild automatisch dem Klassifikator zugeführt werden, was einer Autolernfunktion des Klassifikators für Bordsteinrepräsentationen im Bild entspricht.According to the classifiers are trained. During an automated parking attempt by means of a parking steering assistant (Park Steering Control), the vehicle is automatically aligned in a longitudinal parking space on a curb. The system already knows the location and the presence of a curb. This information can be used directly by the image processing algorithm and corresponding objects in the image are automatically fed to the classifier, which corresponds to an auto-learning function of the classifier for curb representations in the image.
Weiterhin kann der Klassifikator durch Negativ-Erlebnisse lernen. Sollte ein Hindernis überfahren werden, welches nicht als Gefahrobjekt klassifiziert wurde, entstehen entsprechende Ruckbewegungen der Karosserie und Räder. Diese lassen sich mittels verschiedener Sensoren (Reifendrucksensor, Niveausensoren, Sensoren für Längs- und Querbeschleunigung und/oder Gierrate) erkennen.Furthermore, the classifier can learn through negative experiences. Should an obstacle be run over that has not been classified as a danger object, corresponding jerking movements of the body and wheels will result. These can be detected by means of various sensors (tire pressure sensor, level sensors, sensors for longitudinal and lateral acceleration and / or yaw rate).
Dadurch können dem Klassifikator insbesondere Informationen von Hindernissen zugeführt werden, die sich in einer aktuell sehr häufig befahrenen Umgebung befinden. Bei der Verwendung eines entsprechend angelernten Klassifikators, muss ein detektiertes Hindernis aus einer solchen häufig befahrenen Umgebung nur mit einer geringen Anzahl von im Klassifikator vorhandenen Mustern, die den Hindernisse dieser besonderen Umgebung entsprechen, verglichen werden. Dadurch wird der mit dem Vergleichsalgorithmus verbundenen Rechenaufwand und dadurch auch die entsprechende Vergleichszeit erheblich reduziert. As a result of this, the classifier can be supplied, in particular, with information about obstacles which are located in a currently very frequently traveled environment. When using a suitably trained classifier, a detected obstacle from such a frequently traveled environment need only be compared with a small number of patterns present in the classifier corresponding to the obstacles of that particular environment. As a result, the computational effort associated with the comparison algorithm and thus also the corresponding comparison time are considerably reduced.
Weiterhin wird erfindungsgemäß ein Fahrzeug mit einem erfindungsgemäßen Fahrzeugassistenzsystem bereitgestellt.Furthermore, according to the invention, a vehicle is provided with a vehicle assistance system according to the invention.
Die Vorteile des erfindungsgemäßen Fahrzeugassistenzsystems und des erfindungsgemäßen Fahrzeuges entsprechen im Wesentlichen den Vorteilen des entsprechenden erfindungsgemäßen Verfahrens. Aus diesem Grund wird auf eine Widerholung verzichtet.The advantages of the vehicle assistance system according to the invention and the vehicle according to the invention essentially correspond to the Advantages of the corresponding method according to the invention. For this reason, a repetition is waived.
Zeichnungendrawings
Nachfolgend werden Ausführungsbeispiele der Erfindung unter Bezugnahme auf die begleitenden Zeichnungen im Detail beschrieben. In den Zeichnungen ist:Hereinafter, embodiments of the invention will be described in detail with reference to the accompanying drawings. In the drawings:
Ausführungsformen der ErfindungEmbodiments of the invention
In
Mittels von seitlich am Fahrzeug
In der
Neben der voranstehenden schriftlichen Offenbarung wird hiermit zur weiteren Offenbarung der Erfindung ergänzend auf die Darstellung in den
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
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Claims (10)
Priority Applications (4)
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DE102011087894A DE102011087894A1 (en) | 2011-12-07 | 2011-12-07 | Method and vehicle assistance system for active warning and / or navigation aid for avoiding a collision of a vehicle body part and / or a vehicle wheel with an object |
PCT/EP2012/072873 WO2013083384A1 (en) | 2011-12-07 | 2012-11-16 | Method and vehicle assistance system for active warning and/or for navigation aid for preventing a collision of a vehicle body part and/or a vehicle wheel with an object |
JP2014545155A JP6073358B2 (en) | 2011-12-07 | 2012-11-16 | Active warning and / or navigation assistance method for avoiding collision between vehicle body and / or wheel and object |
EP12798642.0A EP2788968B1 (en) | 2011-12-07 | 2012-11-16 | Method and vehicle assistance system for active warning and/or for navigation aid for preventing a collision of a vehicle body part and/or a vehicle wheel with an object |
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DE102011087894A DE102011087894A1 (en) | 2011-12-07 | 2011-12-07 | Method and vehicle assistance system for active warning and / or navigation aid for avoiding a collision of a vehicle body part and / or a vehicle wheel with an object |
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DE102011087894A1 true DE102011087894A1 (en) | 2013-06-13 |
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EP (1) | EP2788968B1 (en) |
JP (1) | JP6073358B2 (en) |
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Also Published As
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JP6073358B2 (en) | 2017-02-01 |
JP2015507776A (en) | 2015-03-12 |
EP2788968A1 (en) | 2014-10-15 |
EP2788968B1 (en) | 2015-08-19 |
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